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Novel heating station system having both large-temperature-difference heat exchange and concentrated heat refrigeration functions

A large temperature difference, thermal station technology, applied in heating and cooling combination, refrigerator, refrigeration and liquefaction, etc., can solve problems such as hydraulic imbalance, affecting the economy of centralized heat transportation, etc.

Active Publication Date: 2016-11-16
YANSHAN UNIV
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Problems solved by technology

However, the cooling load in summer changes frequently in terms of intensity and time, and the flow rate of the central heating network needs to be adjusted frequently accordingly, which leads to serious hydraulic imbalance and affects the economics of centralized heat transmission

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  • Novel heating station system having both large-temperature-difference heat exchange and concentrated heat refrigeration functions

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Embodiment Construction

[0017] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also adopt other Different from other implementation methods described here, those skilled in the art can make similar extensions without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0018] Such as figure 1 Shown is a new thermal station system with large temperature difference heat exchange and concentrated heat refrigeration functions, including absorption heat pump 1, compression heat pump 5, cooling tower 6, first heat exchanger 2 and heat exchanger, said The absorption heat pump 1 includes a generator G, a first evaporator E, an ...

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Abstract

The invention discloses a novel heating station system having both large-temperature-difference heat exchange and concentrated heat refrigeration functions, and relates to the technical field of heating devices. The novel heating station system comprises an absorption heat pump, a compression heat pump, a cooling tower, a first heat exchanger and a heat exchanger; the absorption heat pump includes a generator, a first evaporator, an absorber and a first condenser; the compression heat pump includes a second evaporator and a second condenser; under the working conditions in winter, the large-temperature-difference heat exchange is realized through the absorption heat pump and the compression heat pump, the heating network water return temperature is lowered, and the heating network conveying capacity is improved; under the working conditions in summer, high-temperature heating network water supplied by a concentrated heating resource is used for driving the absorption heat pump to realize concentrated heat refrigeration; meanwhile, the compression heat pump is converted to a refrigeration working condition; the absorber and the first condenser are connected with the second condenser in series for heating; the cooling tower is matched for cooling; and the first evaporator and the second evaporator are serially connected for cooling to realize frozen water supply of a cold supply terminal, so that the utilization rate of heat pump / refrigerator equipment is increased.

Description

technical field [0001] The invention relates to the technical field of thermal devices, in particular to a new type of thermal station system with the functions of large temperature difference heat exchange and concentrated heat refrigeration. Background technique [0002] At present, the combined heat and power system has the bottleneck problem of insufficient heat supply capacity and insufficient transmission capacity of the centralized heat network. In order to solve the problem of insufficient heat supply capacity of the power plant, an absorption heat pump is installed in the power plant to recover the waste heat of flue gas and condensation; Lower the return water temperature to realize heat exchange with large temperature difference. [0003] In summer, the heating units of power plants operate in pure condensing mode due to insufficient heat load; currently, most air conditioners in summer use electric-driven compression refrigeration, resulting in seasonal peak ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B29/00F25B25/02
CPCF25B25/02F25B29/00
Inventor 李岩王鹿
Owner YANSHAN UNIV
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